Massey Ferguson 16 Mower Deck

I mounted the mower deck on my tractor but the one side sits a little higher then the other when the deck is in the raised position. It's fine when the deck is lowered for cutting. Is this normal, or should they sit level when it is raised?

I am not a expert on the MFxx decks but one should be by shortly. Take a good look at the linkage and make sure nothing is bent. OH and also look at the pull rod that go the the front and try to shorten the one on the low side.